<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
    <form action="/login.do">
        <input type="text" placeholder="用户名" name="username"/>
        <input type="password" placeholder="密码" name="password" />
        <input type="submit" value="提交"/>
    </form>
</body>
</html>